South Africa win the first of the two-match series.
Leinster full-back from Naas Jamie Osborne scored a try on his Ireland debut but couldn't prevent his side losing to reigning rugby union world champions South Africa.
It finished 27-20 to the hosts in Pretoria.
Conor Murray and Ryan Baird also crossed for the tourists, who now trail the two-match series 1-nil.
The second final test is next Saturday in Durban at 4.

Kildare Senior Hurling Team vs Galway
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Kildare SF Team (one late change) vs Wexford
Brighton Have Re-Signed Midfielder Pascal Gross
Bournmouth Sign Experienced Goalkeeper Fraser Forster On A Short-Term Contract
Crystal Palace Complete The Club Record Signing Of Brennan Johnson From Tottenham
It's The Women's National Cup Semi Finals Weekend
Donadea's Will Connors To Start For Leinster In Saturday's Clash Against Connacht